QUARKS
INSPIRE search

${\boldsymbol {\boldsymbol c}}$ $I(J^P)$ = $0(1/2^{+})$ 

  Charge = ${2\over 3}$ $\mathit e$ Charm = $+$1
${\mathit {\mathit c}}$-QUARK MASS   $1.27 \pm0.02$ GeV 
${\mathit m}_{{{\mathit c}}}/{\mathit m}_{{{\mathit s}}}$ MASS RATIO   $11.72 \pm0.25$  
${\mathit m}_{{{\mathit b}}}/{\mathit m}_{{{\mathit c}}}$ MASS RATIO   $4.577 \pm0.008$  
${\mathit m}_{{{\mathit b}}}−{\mathit m}_{{{\mathit c}}}$ QUARK MASS DIFFERENCE   $3.45 \pm0.05$ GeV